OpenGrok
Self-hosted source code search and cross-reference engine with web UI, REST API, and SCM history support.
At a Glance
Get started with OpenGrok at no cost
Engagement
Available On
Updated Feb 2026
About OpenGrok
OpenGrok is an open-source, self-hosted code search and cross-reference engine. It indexes large mono-repos or many projects and provides fast full-text, definition/identifier, path, and history search via a web UI and REST API. It integrates with Universal Ctags for language-aware cross-references and understands history from many SCMs (Git, Mercurial, Subversion, Perforce, ClearCase, and more). Deploy it as a Java webapp (WAR) on Tomcat/GlassFish, point it at your source roots, and use the indexer to keep results fresh with incremental updates. Features include syntax-highlighted browsing with x-refs, per-project configuration, a type-ahead suggester, blame/annotate views, downloadable files, and Docker-based setups for quick starts. Licensed under CDDL and actively maintained by Oracle and the community.
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Pricing
Open Source (CDDL)
Get started with OpenGrok at no cost with Full feature set under CDDL license and Self-hosted deployment.
- Full feature set under CDDL license
- Self-hosted deployment
- Community support via GitHub Discussions/Issues
Capabilities
Key Features
- Full-text, definition, identifier, path, and history search
- Language-aware cross-references via Universal Ctags
- Incremental indexing and per-project configuration
- Web UI with syntax highlighting and quick in-file navigation
- SCM history views: annotate/blame, diffs, directory-level changes
- REST API for programmatic search and integration
- Type-ahead search suggester
- Docker image and OS-specific helper scripts
- Authentication/authorization plugin framework
- Lucene-based indexing with tunable performance options
Integrations
Demo Video
